You might want to list distances you anticipate hunting at, areas, which predators and varmints you're going to hunt, what you want to do with each hide, etc. There's actually a lot of guys on here with a lot of experience hunting, trapping and selling fur for different predators and varmints so they could tailor their answers to give you more precise information. If you weren't worried about saving hides, a 243 would be perfect for anything from prairie dogs to deer.